From: Daniel Jordan <daniel.m.jordan@oracle.com>
To: syzbot <syzbot+b187b77c8474f9648fae@syzkaller.appspotmail.com>
Cc: akpm@linux-foundation.org, davem@davemloft.net,
herbert@gondor.apana.org.au, josh@joshtriplett.org,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com,
torvalds@linux-foundation.org
Subject: Re: [syzbot] KASAN: use-after-free Read in __crypto_xor
Date: Fri, 3 Sep 2021 21:33:20 -0400 [thread overview]
Message-ID: <20210904013320.7nrsz4ybh75vkjij@oracle.com> (raw)
In-Reply-To: <000000000000b503bc05cb0ba623@google.com>
On Thu, Sep 02, 2021 at 04:36:25PM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 3e12361b6d23 bcm63xx_enet: delete a redundant assignment
> git tree: net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=160cec72300000
> kernel config: https://syzkaller.appspot.com/x/.config?x=63a23a80f42a8989
> dashboard link: https://syzkaller.appspot.com/bug?extid=b187b77c8474f9648fae
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=144d07b6300000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171b7fca300000
>
> The issue was bisected to:
>
> commit 4611ce22468895acd61fee9ac1da810d60617d9a
> Author: Daniel Jordan <daniel.m.jordan@oracle.com>
> Date: Wed Jun 3 22:59:39 2020 +0000
>
> padata: allocate work structures for parallel jobs from a pool
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=118dccae300000
> console output: https://syzkaller.appspot.com/x/log.txt?x=158dccae300000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+b187b77c8474f9648fae@syzkaller.appspotmail.com
> Fixes: 4611ce224688 ("padata: allocate work structures for parallel jobs from a pool")
>
> ==================================================================
> BUG: KASAN: use-after-free in __crypto_xor+0x376/0x410 crypto/algapi.c:1001
> Read of size 8 at addr ffff88803691a000 by task kworker/u4:1/10
The reproducer hasn't tripped over this yet, but I'll keep trying.
prev parent reply other threads:[~2021-09-04 1:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-02 23:36 [syzbot] KASAN: use-after-free Read in __crypto_xor syzbot
2021-09-04 1:33 ` Daniel Jordan [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210904013320.7nrsz4ybh75vkjij@oracle.com \
--to=daniel.m.jordan@oracle.com \
--cc=akpm@linux-foundation.org \
--cc=davem@davemloft.net \
--cc=herbert@gondor.apana.org.au \
--cc=josh@joshtriplett.org \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=syzbot+b187b77c8474f9648fae@syzkaller.appspotmail.com \
--cc=syzkaller-bugs@googlegroups.com \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.